Manage the remote translation button display

- Add remote_translation_button partial to layout
- Only display button when we have remote_translations and if current
  locale is include on available locales from remote translations service.
- Recover available locales from remote translations service.
  Use daily_cache to detect every day if remote translation service has
  added new available locale.

Co-Authored-By: alessandro <agileontheweb@gmail.com>

lib/remote_translations/microsoft/available_locales.rb

@@ -5,8 +5,10 @@ require "json"
 
 module RemoteTranslations::Microsoft::AvailableLocales
 
-  def load_remote_locales
-    remote_available_locales.map { |locale| locale.first }
+  def available_locales
+    daily_cache("locales") do
+      remote_available_locales.map { |locale| locale.first }
+    end
   end
 
   def parse_locale(locale)
@@ -22,6 +24,10 @@ module RemoteTranslations::Microsoft::AvailableLocales
     end
   end
 
+  def include_locale?(locale)
+    available_locales.include?(parse_locale(locale).to_s)
+  end
+
   private
 
     def remote_available_locales
@@ -42,4 +48,8 @@ module RemoteTranslations::Microsoft::AvailableLocales
       JSON.parse(result)["translation"]
     end
 
+    def daily_cache(key, &block)
+      Rails.cache.fetch("remote_available_locales/#{Time.current.strftime('%Y-%m-%d')}/#{key}", &block)
+    end
+
 end